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Choi, Yang, Lee, Lee, and Jang: Mental Health and Quality of Life for Healthcare Workers in a University Hospital Under COVID-19

Abstract

Objective

The aim of this study was to assess the psychosocial characteristics of the employees working at a university hospital and investigated the factors affecting their quality of life (QOL) under COVID-19.

Methods

This study enrolled 1,191 healthcare workers from a university hospital, including doctors, nurses, administrative officer and technicians. Besides demographic information, depression, anxiety, somatization, insomnia, resilience, and QOL were assessed.

Results

The nurses presented significantly higher scores for anxiety, depression and showed significantly higher insomnia scores and significantly lower resilience scores. The occupations showed significant differences in the QOL and sub-groups, including the overall quality of life and general health (F=4.774, p<0.001), psychological domain (F=6.230, p<0.001), and environment domain (F=5.254, p<0.001). There was a positive correlation between the QOL and resilience (r=0.608, p<0.01). However, depression (r=-0.502, p<0.01), anxiety (r=-0.425, p<0.01), somatization (r=-0.364, p<0.01), and insomnia (r=-0.385, p<0.01) showed negative correlations with the QOL. Resilience was the most important factor influencing the QOL.

Conclusion

The results of this study showed that low resilience adversely affected the QOL and the mental health of the healthcare workers, which consequently had a direct effect on the quality of medical care given to patients.

INTRODUCTION

On December 31, 2019, the Chinese health authorities reported the occurrence of pneumonia cases of an unknown cause in Wuhan city, Hubei Province, China to the World Health Organization [1]. The novel coronavirus strain, with the proposed interim name “2019-nCoV” on January 7 by the WHO, was detected in the throat swab samples of the patients [2,3]. This novel virus was soon renamed as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and the disease was officially named coronavirus disease 2019 (COVID-19) by the WHO. Furthermore, the WHO declared the SARS-CoV-2 outbreak as a public health emergency of international concern on January 30, 2020 [4].
As COVID-19 continued to spread worldwide, the governments took unprecedented measures including quarantine and travel bans. China locked down the whole city [5], while Italy enforced strict measures in the entire country [6]. The United States has imposed travel restrictions on non-citizens travelling from China, Iran, and most European countries. Moreover, it continues to screen travelers coming from regions severely affected by the pandemic. Despite these measures, the number of patients and mortality rate continue to rise [7].
While strategies of quarantine and isolation are adopted to protect the physical health of the individual from infectious diseases, we should also consider the effect of these measures on the mental health [8,9]. According to several studies, restrictive measures such as quarantine, isolation, and social distancing affect the psychological as well as emotional well-being of individuals [10,11]. The psychological responses of an individual to an infectious disease include anxiety, fear, frustration, loneliness, rage, boredom, depression, stress, and maladaptive behaviors such as avoidance, emotional pain, and defensive response [12,13].
Additionally, healthcare workers experience extreme stress due to an increasing number of confirmed and suspected cases, excessive workload, lack of personal protective equipment, exaggerated media coverage, insufficient number of supportive staff, etc [14]. As reported in the studies conducted during the 2003 SARS outbreak, healthcare workers experience significant levels of stress, anxiety, and depression, as well as possible long-term psychological effects [15,16].
In South Korea, the National Center for Disaster Trauma conducted a thorough mental health survey for 1,375 personnel working at public health centers at each municipality, the National Center for Mental Health, the Metropolitan Mental Health Welfare Centers, and the Basic Mental Health Promotion Centers. The research examined the presence of depression, anxiety, somatization, post-traumatic stress symptoms, suicidal risk, and resilience in the healthcare workers. According to the Report on the Mental Health Status of Disaster Psychosocial Support Personnel in 2020, among the psychological symptoms, a clinically significant level of depression was reported in 7.5% of the responders, anxiety in 4.6%, somatization in 18.1%, post-traumatic stress symptoms in 8.6%, and suicidal risk in 0.5% [17].
However, reports on abnormal mental health cases related to COVID-19 are limited, especially those on frontline healthcare workers working to overcome the disaster. Therefore, this study assessed the psychosocial characteristics of the employees working at a single university hospital and investigated the factors affecting their quality of life.

METHODS

Participants

This study enrolled 1,191 healthcare workers from a single university hospital, including doctors, nurses, administrative officer and technicians, who understood the purpose of this study and provided written informed consent. The research was conducted from November 2020 to January 2021 and was approved by the Institutional Review Board (IRB) of the Wonkwang University Hospital (IRB approval number: WKUH 2020-02-052). The protocol for the research project is conformed to the provisions of the Declaration of Helsinki.

Materials and methods

Anxiety and depression

The Hospital Anxiety and Depression Scale (HADS) developed by Zigmond and Snaith [18] was used to assess the level of anxiety and depression in the participants. HADS consists of 14 items, of which the 7 odd-numbered questions represent the anxiety subscale (HAMD-A) and 7 even-numbered questions represent the depression subscale (HAMD-D). Each item is rated on a 4-point scale (range: 0-3), and the optimal cut-off score is 8 for both HAMD-A and HAMD-D. In Korea, Oh et al. [19] translated the scale to Korean and standardized it.

Somatic symptoms

The Patient Health Questionnaire-15 (PHQ-15), a self-administered test developed by Kroenke et al. [20] to diagnose psychiatric illnesses in a primary care setting, was used to assess the somatic symptoms. The PHQ-15 comprises 15 items, and each item is rated on a 3-point scale (range: 0-2). The total score reflects the severity of the somatic symptoms, where scores ≤5 are defined as “low,” 6-10 as “medium,” and ≥11 as “high.” In South Korea, Han et al. [21] translated it to Korean and tested its reliability and validity.

Insomnia

The Insomnia Severity Index (ISI) developed by Bastien et al. [22] was used to assess insomnia. It consists of total 7 items, wherein each item is rated on a scale of 0-4, and the total score ranges between 0 and 28. The ISI assesses the insomnia severity in the past 2 weeks, degree of satisfaction with the present sleep cycle, functional impairment during the day, concerns about sleep, and diminished quality of life. In the Korean version of ISI, a total score ≥15 is classified as high risk for insomnia. In South Korea, Cho et al. [23] validated the Korean version of the index.

Resilience

To assess the resilience, we used the Connor-Davidson Resilience Scale (CD-RISC) developed by Conner and Davidson [24]. The CD-RISC comprises 25 items, including 5 factors on hardiness, persistence, optimism, support, and spirituality in nature. Since each item is rated on a 5-point Likert scale from 0 (“not true at all”) to 4 (“true nearly all of the time”), the total score ranges from 0 to 100, with higher scores indicating greater resilience. In South Korea, Baek et al. [25] translated it to Korean and tested the validity.

Quality of life

To measure the quality of life, we used the WHO Quality of Life Instruments (WHOQOL-BREF) developed by the WHOQOL Group [26]. This instrument consists of 26 items across 5 fields (2 questions on the Overall Quality of Life and General Health, 7 in the physical health domain, 6 in the psychological domain, 3 in the social relationships domain, and 8 in the environment domain). Each item is rated on a 5-point Likert scale from 0 (“not true at all”) to 4 (“true nearly all of the time”), where a higher score reflects a better quality of life, and the optimal cut-off score is 60 [27]. In South Korea, Min et al. [28] translated it to Korean and tested its validity and reliability.

Statistical analysis

The demographic and psychosocial characteristics were compared among the different groups. The continuous variables are presented as means and standard deviations and categorical variables as frequencies and ratios. A one-way ANOVA was used to compare the parametric quantitative variables, followed by a Bonferroni test for post hoc analysis to further examine the differences among the groups. Pearson’s correlation test was performed to assess the association between the quality of life and psychosocial factors of the participants from different occupations. To determine the factors affecting the quality of life, we performed stepwise regression analysis. All the collected data were analyzed using the Statistical Package for the Social Sciences (SPSS, version 21; IBM Corp., Armonk, NY, USA) and p values <0.05 were considered statistically significant.

RESULTS

Demographic characteristics of the study participants

The demographic characteristics of the study participants showed that females (n=969, 81.4%), unmarried individuals (n=673, 56.4%), and university graduates or above (n=761, 63.9%) were predominant. With respect to the various occupations, the proportion of nurses (n=664, 55.9%) was the largest, followed by administrative officer (n=344, 29.0%), technicians (n=129, 10.9%), and doctors (n=51, 4.3%) (Table 1).

Psychosocial characteristics according to the occupation

The psychosocial characteristics were compared among the different occupations. The nurses presented significantly higher scores for anxiety (6.25±3.50) as compared to the technicians (4.59±3.28) and administrative officer (5.03±3.27) (F=11.794, p<0.001). Similarly, the nurses showed significantly higher scores for depression (7.97±3.69) as compared to the technicians (6.50±3.87) and administrative officer (6.82±3.63) (F= 8.616, p<0.001). The nurses (8.47±4.70) and administrative officer (6.67±4.79) presented higher scores for somatization than that of the doctors (3.78±3.57) (F=22.855, p<0.001). The nurses showed significantly higher insomnia scores (10.10±5.60) as compared to the doctors (6.22±4.54), technicians (7.72±5.28), and administrative officer (7.55±5.27) (F=18.320, p<0.001). Furthermore, the nurses (57.10±14.32) showed significantly lower resilience scores than that of the technicians (65.82±14.09) and administrative officer (60.29±14.71) (F=11.254, p<0.001) (Table 2).

Characteristics of the quality of life according to the occupation

The occupations showed significant differences in the quality of life and all its sub-groups, including the Overall Quality of Life and General Health (F=4.774, p<0.001), psychological domain (F=6.230, p<0.001), and environment domain (F=5.254, p<0.001). In the post-hoc analysis of the Overall Quality of Life and General Health, the nurses (6.17±1.35) showed significantly lower scores as compared to the technicians (6.67± 1.46). There were significant differences in the physical health domain (F=11.931, p<0.001) among the groups, with the nurses (22.34±3.77) scoring significantly lower than the doctors (24.16±3.66), technicians (24.26±4.07), and administrative officer (23.42±3.70). In the psychological domain, the nurses (19.76±3.96) scored significantly lower than the technicians (21.26±3.52). In the social relationships domain, the technicians (10.60±3.10) scored significantly higher than the nurses (9.90±1.78) and administrative officer (9.86±1.76). In the environment domain, the nurses (26.59±4.59) scored significantly lower than the technicians (28.18±4.67). Moreover, the nurses (100.73±12.49) scored significantly lower than the doctors (105.69±11.28) and technicians (105.88±12.21) (F=6.732, p<0.001) in the total quality of life scores (Table 3).

Correlations between the quality of life and each psychological variable

There was a positive correlation between the quality of life and resilience (r=0.608, p<0.01). However, depression (r=-0.502, p<0.01), anxiety (r=-0.425, p<0.01), somatization (r=-0.364, p<0.01), and insomnia (r=-0.385, p<0.01) showed negative correlations with the quality of life (Table 4).

Factors affecting the quality of life

A stepwise regression analysis was performed to determine the factors predicting the quality of life. Resilience (β=0.463, p<0.01), depression (β=-0.175, p<0.01), insomnia (β=-0.141 p<0.01), and anxiety (β=-0.089, p<0.01) showed statistical significance, of which resilience was the most important factor influencing the quality of life. These factors accounted for 46.0% of the explanatory variance of the total quality of life (Table 5).

DISCUSSION

As COVID-19 spread around the world, the governments implemented quarantines and travel bans on an unprecedented scale. Although the selected strategies of quarantine and isolation are adopted to protect the physical health of the individuals from infectious diseases, these measures affect their psychological as well as emotional well-being. Particularly, healthcare workers suffer from extreme stress. However, only few cases of mental health problems related to COVID-19 have been reported, especially those among the frontline healthcare workers fighting against this disaster. Therefore, this study intended to assess the psychosocial characteristics of the healthcare workers at a single university hospital and investigate the factors affecting their quality of life.
As compared to the other occupation groups, the nurses demonstrated higher levels of depression, anxiety, and somatization, but lower resilience. According to previous studies, Yoon and Cho [29] reported that working in shifts could disturb the circadian rhythm, sleep, and daily life. The nurses on three rotating shifts had higher stress levels than those on fixed shifts. Moreover, lack of occupational autonomy, increased workload, and inadequate recognition and compensation affected the mental health of the nurses [30,31]. In the process of familiarizing themselves with new tasks, nurses may face physical and psychological stress from their interaction with the patients and their colleagues. Additionally, continuous rise in the number of patients is associated with increased job stress [32]. According to a study conducted for the medical staff working in the emergency room during the SARS outbreak [33], the nurses complained of more psychological distress including depression and anxiety as compared to the doctors. Similar results were observed during the COVID-19 pandemic, which could be attributed to the longer contact time and closer proximity of the nurses with the patients than that of the doctors [34-36]. Additionally, due to unfamiliar work environment, new colleagues, complex work procedures, risk of infection, and prolonged time to wear the protective equipment, the nurses may experience increased psychological burden of anxiety, depression, and fear [37].
The WHO defined the quality of life as “an individual’s perception of their position in life in the context of culture and value systems in which they live and in relation to their goals, expectations, standards, and concerns.” [38] The COVID-19 pandemic resulted in the deaths of 2 million people worldwide, and the workload of healthcare workers increased dramatically. According to previous studies, due to COVID-19, the medical staff encountered high levels of anxiety and depression, and their quality of life reduced. In this study, the quality of life showed a negative correlation with depression, anxiety, somatization, and sleep disturbance, but a positive correlation with resilience [39,40].
Resilience, which is a part of the physical and psychological characteristics of an individual, refers to the ability to adapt to changes and cope with stressful situations [41]. The results of this study showed that low resilience adversely affected the quality of life and the mental health of the healthcare workers, which consequently had a direct effect on the quality of medical care given to patients [42,43]. Since resilience can be acquired and strengthened through learning [44], we believe that it is necessary to adopt educational programs and psychiatric therapy to promote the resilience of the disaster workers in South Korea. There are several ways to increase resilience, including self-management strategies such as regular exercise [45], sleep hygiene education [46], mindfulness, and meditation [47]. In terms of organizational justice, reasonable distribution of work [45,48], compliance with working hours, and effective communication are recommended [45,49]. By utilizing e-learning and video platforms, medical institutions can also engage in interventions to improve communication skills, case management, and troubleshooting strategies to solve any possible psychological problems that might arise when treating COVID-19 patients [50].
There are some limitations in this study. First, there is a limit to the generalization of its results since the study participants were from a single university hospital. Second, the proportion of doctors among the study participants was small. Third, as a cross-sectional study, the confounding factors including exposure level of the patients infected with COVID-19, baseline anxiety and depressive symptoms of healthcare worker, and other are not adjusted in their mental health and quality of life in COVID-19 pandemic. There are limitations in inferring the causal relationships. Nevertheless, this study is the first report on the mental health of disaster workers and the inadequacy in the current policy or system to prevent stress in disaster workers. Thus, through a mental health survey, this study sought to provide the necessary evidence for promoting the mental health of these workers, which would in turn improve the quality of medical care given to the patients.
The confounding factors including exposure level of the patients infected with COVID-19, baseline anxiety and depression symptoms of healthcare worker, and other should be adjusted in their mental health and quality of life in COVID-19 pandemic. If it cannot be conducted, the contents should be described in the limitation.

Notes

Availability of Data and Material

The datasets generated or analyzed during the study are available from the corresponding author on reasonable request.

Conflicts of Interest

The authors have no potential conflicts of interest to disclose.

Author Contributions

Conceptualization: Seung-Ho Jang, Hye-Ji Choi. Data curation: SeungHo Jang, Hye-Jin Lee. Formal analysis: Seung-Ho Jang, Hye-Ji Choi, ChanMo Yang. Funding acquisition: Seung-Ho Jang. Investigation: Seung-Ho Jang, Hye-Ji Choi, Sang-Yeol Lee, Hye-Jin Lee. Methodology: Seung-Ho Jang. Project administration: Seung-Ho Jang, Chan-Mo Yang. Resources: Seung-Ho Jang. Software: Seung-Ho Jang, Hye-Ji Choi, Sang-Yeol Lee, HyeJin Lee. Supervision: Seung-Ho Jang, Sang-Yeol Lee. Validation: Seung-Ho Jang. Visualization: Seung-Ho Jang, Hye-Ji Choi, Chan-Mo Yang. Wiriting—original draft: Seung-Ho Jang, Hye-Ji Choi. Writing—review & editing: Seung-Ho Jang, Hye-Ji Choi.

Funding Statement

This study was supported by Wonkwang University in 2021.

Table 1.
Demographic and clinical characteristics of participants
Variables Value
Sex
 Male 222 (18.6)
 Female 969 (81.4)
Age 34.47±11.064
Occupation
 Doctor 51 (4.3)
 Nurse 664 (55.9)
 Technician 129 (10.9)
 Administrative officer 344 (29.0)
Marital status
 Single 673 (56.4)
 Married 496 (41.6)
 Separated 13 (1.1)
 Divorced 9 (0.8)
 Widowed 2 (0.2)
Education (years)
 Low (<12) 92 (7.7)
 Middle (12-16) 338 (28.4)
 High (>16) 761 (63.9)
Chronic disease
 Yes 88 (7.4)
 No 1,107 (92.6)
Respiratory disease
 Yes 85 (7.1)
 No 1,108 (92.9)

Data are presented as the N (%) or mean±standard deviation

Table 2.
Difference of HADS, PHQ-15, ISI, and CD-RISC among the groups
Variables Doctora (N=79) Nurseb (N=664) Technicianc (N=129) Administrative officerd (N=344) F Post-hoc Bonferroni test
HADS
Anxiety 5.25±3.46 6.25±3.50 4.59±3.28 5.03±3.27 11.794*** c, d<b
Depression 6.75±3.97 7.97±3.69 6.50±3.87 6.82±3.63 8.616*** c, d<b
PHQ-15 3.78±3.57 8.47±4.70 5.70±4.50 6.67±4.79 22.855*** a, c, d<b, a<d
ISI 6.22±4.54 10.10±5.60 7.72±5.28 7.55±5.27 18.320*** a, c, d<b
CD-RISC 61.41±17.00 57.10±14.32 65.82±14.09 60.29±14.71 11.254*** c, d<b

Data are presented as mean±standard deviation.

*** p<0.001.

HADS, Hospital Anxiety Depression Scale; ISI, Insomnia severity scale; PHQ-15, Patient Health Questionnaire-15; CD-RISC, Connor-Davidson Resilience Scale

Table 3.
Comparison of WHOQOL-BREF among the groups
Variables Doctora (N=79) Nurseb (N=664) Technicianc (N=129) Administrative officerd (N=344) F Post-hoc Bonferroni test
Overall 6.57±1.45 6.17±1.35 6.67±1.46 6.37±1.28 4.774*** b<c
Physical 24.16±3.66 22.34±3.77 24.26±4.07 23.42±3.70 11.931*** b<a, c, d
Psychological 21.24±3.42 19.76±3.96 21.26±3.52 20.27±3.35 6.230*** b<c
Social 10.33±1.97 9.90±1.78 10.60±3.10 9.86±1.76 4.340*** b, d<c
Environmental 28.41±.3.71 26.59±4.59 28.18±4.67 27.18±4.31 5.254*** b<c
Sum of WHOQOL-BREF 105.69±11.28 100.73±12.49 105.88±12.21 102.58±11.35 6.732*** b<a, c

Data are presented as mean±standard deviation.

*** p<0.001.

WHOQOL-BREF, Korean Version of World Health Organization Quality of Life Assessment Instrument Brief Form

Table 4.
Bivariate associations between WHOQOL-BREF and psychological variables
Variables WHOQOL-BREF HADS (anxiety) HADS (depression) PHQ-15 ISI CD-RISC
WHOQOL-BREF 1
HADS (anxiety) -0.425* 1
HADS (depression) -0.502* 0.661* 1
PHQ-15 -0.364* 0.586* 0.558* 1
ISI -0.385* 0.453* 0.451* 0.541* 1
CD-RISC 0.608* -0.338* -0.441* -0.289* -0.270 1

* p<0.01.

WHOQOL-BREF, World health organization quality of life assessment instrument brief form; HADS, Hospital Anxiety Depression Scale; PHQ-15, Patient health questionnaire-15; ISI, Insomnia severity scale; CD-RISC, Connor-Davidson Resilience Scale

Table 5.
Stepwise regression analysis of WHOQOL-BREF among the subjects
Standardized β t p Adjusted R2 F p
CD-RISC 0.463 19.425 <0.01 0.460 9.255 0.002
HADS (depression) -0.175 -5.761 <0.01
ISI -0.141 -5.731 <0.01
HADS (anxiety) -0.089 -3.042 <0.01

WHOQOL-BREF, World health organization quality of life assessment instrument brief form; HADS, Hospital Anxiety Depression Scale; ISI, Insomnia severity scale; CD-RISC, Connor-Davidson Resilience Scale

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